ADOPTED LEVELS, GAMMAS for 93Kr
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 112, 1163 (2011) | Cutoff date: 15-Dec-2010
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=8484 keV 9 | S(n)= 3438 keV 4 | S(p)= 15192 keV 8 | Q(α)= -7569 keV 5 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 93Br β- decay | B | 94Br β-n decay |
| C | 252Cf SF decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | ABC | 1/2+ | 1.286 s 10 % β- = 100 % β-n = 1.95 11 | |||||
| 117.45 15 | A C | (3/2+) | 117.4 2 | 100 | (M1) | 0 | 1/2+ | |
| 354.85 25 | A C | (7/2+) | 10 ns 2 | 237.4 2 | 100 | (E2) | 117.45 | (3/2+) |
| 359.46 15 | A | (3/2+,5/2+) | 242.0 2 359.4 2 | 100 13 6.2 12 | (M1(+E2)) | 117.45 0 | (3/2+) 1/2+ | |
| 710.10 18 | A | (3/2,5/2+) | 349.9 5 592.7 4 710.2 2 | 18 11 54 13 100 9 | 359.46 117.45 0 | (3/2+,5/2+) (3/2+) 1/2+ | ||
| 805.40 20 | A | 446.0 2 687.9 2 | 100 13 78 6 | 359.46 117.45 | (3/2+,5/2+) (3/2+) | |||
| 983.3 11 | C | (11/2+) | 628.4 | 100 | 354.85 | (7/2+) | ||
| 1029.0 4 | A | 669.5 3 | 100 | 359.46 | (3/2+,5/2+) | |||
| 1325.9 8 | A | 966.4 7 | 100 | 359.46 | (3/2+,5/2+) | |||
| 1337.1 7 | A | 977.6 6 | 100 | 359.46 | (3/2+,5/2+) | |||
| 1517.0 15 | C | (15/2+) | 533.7 | 100 | 983.3 | (11/2+) | ||
| 2401.8 18 | C | (19/2+) | 884.8 | 100 | 1517.0 | (15/2+) | ||
| 3199.9 21 | C | (23/2+) | 798.1 | 100 | 2401.8 | (19/2+) | ||
E(level): From least-squares fit to Eγ, assigning 1 keV uncertainty to Eγ data for which authors did not state the uncertainty.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - π=+ SEQUENCE. | |||||||
| 0 | 1/2+ | 1.286 s 10 % β- = 100 % β-n = 1.95 11 | |||||
| 117.45 15 | (3/2+) | 117.4 2 | 100 | (M1) | 0 | 1/2+ | |
| 354.85 25 | (7/2+) | 10 ns 2 | 237.4 2 | 100 | (E2) | 117.45 | (3/2+) |
| 983.3 11 | (11/2+) | 628.4 | 100 | 354.85 | (7/2+) | ||
| 1517.0 15 | (15/2+) | 533.7 | 100 | 983.3 | (11/2+) | ||
| 2401.8 18 | (19/2+) | 884.8 | 100 | 1517.0 | (15/2+) | ||
| 3199.9 21 | (23/2+) | 798.1 | 100 | 2401.8 | (19/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 117.45 | (3/2+) | 117.4 2 | (M1) | 0.0832 | α=0.0832 | |
| 354.85 | (7/2+) | 10 ns 2 | 237.4 2 | (E2) | 0.0388 | B(E2)(W.u.)=2.9 6, α=0.0388 |
| 359.46 | (3/2+,5/2+) | 242.0 2 | (M1(+E2)) | 0.024 | α=0.024 12 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 1/2+ | 1.286 s 10 % β- = 100 % β-n = 1.95 11 | μ=-0.413 2 Δ<r2>(relative to 86Kr) is 0.811 from collinear fast beam laser spectroscopy (1995Ke04); uncertainties are 0.004 (statistical), 0.023 (with systematic error in voltage calibration), 0.151 (total error, including uncertainty in evaluation from isotope shifts). E(level): Δ<r2>(relative to 86Kr) is 0.811 from collinear fast beam laser spectroscopy (1995Ke04); uncertainties are 0.004 (statistical), 0.023 (with systematic error in voltage calibration), 0.151 (total error, including uncertainty in evaluation from isotope shifts). From 2010Hw03; uncertainty unstated by authors. π=+ SEQUENCE. Jπ(level): J=1/2 from collinear fast beam laser spectroscopy (1995Ke04); π=+ from comparison of μ with Schmidt values. μ is only about 22% of the single-particle value, but 1995Ke04 attribute this to quenching resulting from configuration mixing. Configuration=(ν s1/2) is expected for near-spherical nuclei immediately above the n=56 sub-shell closure (1995Ke04). |
| 117.45 | (3/2+) | E(level): From 2010Hw03; uncertainty unstated by authors. π=+ SEQUENCE. | |
| 354.85 | (7/2+) | 10 ns 2 | E(level): From 2010Hw03; uncertainty unstated by authors. π=+ SEQUENCE. Jπ(level): log ft<5.9 is a little low for a first-forbidden transition; this may result from an incomplete decay scheme (≈21% of the photon intensity observed in 93Br β- decay is unplaced). |
| 359.46 | (3/2+,5/2+) | Jπ(level): log ft<5.9 is a little low for a first-forbidden transition; this may result from an incomplete decay scheme (≈21% of the photon intensity observed in 93Br β- decay is unplaced). | |
| 710.10 | (3/2,5/2+) | Jπ(level): log ft<5.9 is a little low for a first-forbidden transition; this may result from an incomplete decay scheme (≈21% of the photon intensity observed in 93Br β- decay is unplaced). | |
| 983.3 | (11/2+) | E(level): From 2010Hw03; uncertainty unstated by authors. π=+ SEQUENCE. | |
| 1517.0 | (15/2+) | E(level): From 2010Hw03; uncertainty unstated by authors. π=+ SEQUENCE. | |
| 2401.8 | (19/2+) | E(level): From 2010Hw03; uncertainty unstated by authors. π=+ SEQUENCE. | |
| 3199.9 | (23/2+) | E(level): From 2010Hw03; uncertainty unstated by authors. π=+ SEQUENCE. |
| E(level) | E(gamma) | Comments |
| 117.45 | 117.4 | M(γ): d from α(K)exp in 93Br β- decay; Δπ=no based on shell-model (2000PfZZ); analogy to n=57 isotone 97Zr and n=59 nuclides 99Zr and 97Sr. |
| 354.85 | 237.4 | M(γ): M1 or E2 from β- decay; ΔJ=2 from level scheme. |
| 983.3 | 628.4 | E(γ): From 2010Hw03; uncertainty unstated by authors. |
| 1517.0 | 533.7 | E(γ): From 2010Hw03; uncertainty unstated by authors. |
| 2401.8 | 884.8 | E(γ): From 2010Hw03; uncertainty unstated by authors. |
| 3199.9 | 798.1 | E(γ): From 2010Hw03; uncertainty unstated by authors. |
For isotope shift and hfs data from collinear fast beam laser spectroscopy, see 1995Ke04.
Q-value: Note: Current evaluation has used the following Q record 8485 83438 4 14.86×103 5-7569 5 2003Au03,2009AuZZ
Q-value: Q(β-), S(n), S(p), Q(α): from 2009AuZZ (cf. 8600 100, 3300 100, 14730 110, -7250 310 (systematics), respectively, from 2003Au03).
Q-value: Q(β-n)=2567 7 (2009AuZZ) (cf. 2680 100 (2003Au03)).